Chlorophyta

Green Algae -- 7500 Species

Distribution:

 

Pigmentation

Photosynthate

Flagellation

Chlorophhyls A,B

Alpha and beta carotene

Xanthophylls

Starch

A few oil

2 or 4 or many

anterior

whiplash

Sexual reproduction

  1. Isogamy
  2. Anisogamy
  3. Oogamy

Asexual reproduction

  1. Zoospores
  2. Aplanospores
  3. Autospores
  4. Hypnospores

Gross morphology

  1. Unicellualr
  2. Colonial
    1. Palmelloid
    2. Coenobium
  3. Filamentous
    1. Simple
    2. Branched
  4. Siphonous = coenocytic
  5. Lamelloid
  6. Heterotrichous

 

Cell structure

  1. Cell wall

    1. Cellulose -- most

    2. Xylan

    3. Calcium carbonate = lorica

  2. Contractile vacuoles

  3. Stigma -- red to orange carotenoid

  4. Plastids

    1. Distinct to genera

    2. 1--many

Economic importance

  1. Food chain
  2. Limestone deposition
    1. Coral reefs
    2. Marl
  3. Oxidation ponds
  4. Food

Chlorella

 

 

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